Pull request: client: upd i18n

Merge in DNS/adguard-home from 2643-upd-i18n to master

Squashed commit of the following:

commit 328847d67d1be5632777dd146b4110d5ab1d57d4
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Jul 20 13:18:58 2021 +0300

    client: upd i18n more

commit b9856dbd013056aa690f7a5ca116a194d218554d
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Jul 20 12:52:33 2021 +0300

    client: upd i18n

client/src/__locales/zh-cn.json

@@ -112,6 +112,8 @@
     "for_last_24_hours": "在过去 24 小时",
     "for_last_days": "最近 {{count}} 天",
     "for_last_days_plural": "最近 {{count}} 天",
+    "stats_disabled": "已禁用统计数据。您可以从<0>设置页面</0>打开它。",
+    "stats_disabled_short": "已禁用统计数据",
     "no_domains_found": "未找到域名",
     "requests_count": "请求数",
     "top_blocked_domains": "被拦截域名排行",
@@ -484,6 +486,7 @@
     "encryption_key_source_content": "粘贴私钥内容",
     "stats_params": "统计配置",
     "config_successfully_saved": "配置保存成功",
+    "interval_6_hour": "6 小时",
     "interval_24_hour": "24 小时",
     "interval_days": "{{count}} 天",
     "interval_days_plural": "{{count}} 天",
@@ -594,6 +597,8 @@
     "cache_ttl_min_override_desc": "缓存 DNS 响应时，延长从上游服务器接收到的 TTL 值 (秒)",
     "cache_ttl_max_override_desc": "设定 DNS 缓存条目的最大 TTL 值（秒）",
     "ttl_cache_validation": "最小缓存TTL值必须小于或等于最大值",
+    "cache_optimistic": "优化的",
+    "cache_optimistic_desc": "即使条目已过期，也让 AdGuard Home 从缓存中响应，并尝试刷新它们。",
     "filter_category_general": "常规",
     "filter_category_security": "安全",
     "filter_category_regional": "区域",